Mariano Rivera dealing with severe headaches, possibly migraines

By Matt Snyder | Baseball Writer

March 24, 2013 1:22 PM ET

Mariano Rivera is possibly dealing with migraines. (USATSI)

Yankees closer Mariano Rivera is coming back from a surgically repaired ACL, but that's not his only issue this spring. He's been having "severe" headaches for the past two weeks, and it's gotten bad enough that Rivera had to have a CAT scan and blood test Friday. The Yankees believe he's suffering from migraine headaches.

They do not, however, believe it's anything worse than that.

“There are protocols and we ran through them,'' Yankees general manager Brian Cashman said (NYPost.com). “Even if there is one-half of a percent [of a problem], you want to rule it out. We weren't worried about it.''